A) 60 B) 23 C) 50 D) 51
A) 17 B) 1 C) 7 D) 3
A) 5 B) 45 C) 9 D) 103
A) 3 B) 15 C) 33 D) 4
A) Noble Gases B) Halogens C) Alkali Metals D) Transition Metals E) Alkaline Earth Metals
A) 2 B) 14 C) 14.007 D) 7
A) 137 B) 56 C) 6 D) 2
A) 7 B) 2 C) 1 D) 6
A) Phosphorus is a non-metal gas. B) Mercury is a solid metal. C) Tellurium is a solid metalloid. D) Chlorine is a liquid non-metal.
A) 96 B) 42 C) 5 D) 6
A) 4 B) 7 C) 2 D) 3
A) proton/+, electron/-, neutron/uncharged B) proton/+, electron/neutral, neutron/- C) proton/-, electron/+, neutron/no charge D) proton/+, neutron/-, electron/no charge
A) neutrons and electrons B) protons and orbits C) protons and neutrons D) protons and electrons
A) Carbon and Boron B) Mercury and Thallium C) Argon and Krypton D) Phosphorus and Silicon
A) electrons orbit totally randomly around the nucleus B) the atom is mostly empty space C) atoms are tiny solid spheres D) the atom is a positively charged sphere with electrons embedded in it
A) period B) region C) nucleus D) group
A) Beryllium B) Lithium C) Chlorine D) Magnesium
A) group number B) number of protons C) period number D) number of neutrons
A) greater than the mass number B) the same as the number of energy levels C) the mass number minus the atomic number D) the same as the number of electrons
A) State of Matter B) Number of Neutrons C) Group Number D) Period Number
A) Carbon B) Manganese C) Francium D) Nitrogen
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity.
A) by adding protons B) By adding or losing electrons C) by losing protons D) by adding electrons
A) by losing electrons B) by losing protons C) by adding protons D) by adding electrons
A) by adding protons B) by losing protons C) by losing electrons D) by adding electrons
A) by adding protons B) by adding electrons C) by adding neutrons D) by adding or losing neutrons
A) difference between the atomic and mass number B) mass number divided by 2 C) same as the mass number D) same as the atomic number
A) the difference between the mass and atomic number B) the same as the atomic number C) the same as the mass number D) the same as the number of neutrons
A) Hg and C B) Mg and F C) Na and Li D) B and O
A) F and At B) Ba and Ra C) Mg and Cl D) Li and Po
A) The transition metals B) The alkali earth metals C) The halogens D) The alkali metals E) The noble gases
A) The transition metals B) The halogens C) The alkali metals D) The noble gases
A) 8 B) 18 C) 17 D) 4 E) 1
A) how many protons there are B) how many electrons there are C) how reactive they are D) how many electron levels there are
A) the number of neutrons B) how many electrons the atom has C) how many valence electrons the atom has D) the number of protons
A) Mercury B) Silver C) Sodium D) Fluorine E) Iron
A) H B) Au C) Al D) Li E) F
A) Mg B) Al C) Cs D) I E) Li
A) the number of protons B) the number of electrons C) the number of neutrons
A) Newton B) Bohr C) Dalton D) Lewis E) Mendeleev |